Every year, Open House New York celebrates architecture, urban design and public space by providing people with unparalleled access to architectural sites in New York. Since its inaugural year in 2003, the weekend event has grown to include over 275 participating sites across all five boroughs. This year’s OHNY weekend will take place on October 15th and 16th.

Today is the official release of the locations for 2016. In the second of several announcements in partnership with Open House New York, Untapped Cities has curated a list of Open Access sites to check out, which do not require advance reservation.

10. New York State Pavilion

Photo via Daniel-Avila via Open House New York

Not much remains of the 1964-65 World’s Fair aside from the ruins of the New York State Pavilion. Designed by architect Philip Johnson, the stunning structure, regarded as the jewel of Flushing Meadows-Corona Park in Queens, is comprised of three components – the “Tent of Tomorrow,” which once supported a cable suspension roof, the “Theaterama,” currently home to the Queens Theatre, and the three concrete Observation Towers, featuring two shorter towers that held once cafeterias and one taller tower that held an observation deck.